Two adults and two children were chased from their home Sunday night by a fire that started on the second floor of a single-family residence at 828 S. Filmore St. in Allentown, a city fire official said this morning.

The first call came in about 9:26 p.m. and the family was already outside the home, Assistant Fire Chief Lee Laubach said. Nobody was hurt in the fire, he said.

The fire destroyed a second floor room but it was quickly knocked down and most of the fire damage was limited to the room and its contents, Laubach said. There was smoke damage elsewhere in the house, he said. The fire was under control within a half-hour, he said.